package com.atguigu.springcloud.service.impl;

import com.atguigu.springcloud.service.IMessageProvider;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessageChannel;

import javax.annotation.Resource;
import java.util.UUID;

/**
 * @author a1790
 */

/**
 * 定义消息得推送管道 @EnableBinding(Source.class)
 */
@EnableBinding(Source.class)
public class MessageProviderImpl implements IMessageProvider {
    @Resource
    /**
     * 消息发送管道  MessageChannel output;
     */
    private MessageChannel output;
    @Override
    public String send() {
        String serial= UUID.randomUUID().toString();
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("*******serial:"+serial);
        return null;
    }
}
